From b49653ae6e81ec87cb0f3a65e41d14df9e7e44c0 Mon Sep 17 00:00:00 2001
From: = <valerachuiko@gmail.com>
Date: Tue, 27 Feb 2024 10:50:39 -0500
Subject: [PATCH] added hydrogenic function

---
 book/_toc.yml | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/book/_toc.yml b/book/_toc.yml
index 9a71d554..221a9bc5 100644
--- a/book/_toc.yml
+++ b/book/_toc.yml
@@ -82,6 +82,9 @@ parts:
 
     - file: OneElectronAtoms.ipynb
       title: 1-electron atoms
+      sections:
+      - url: https://classroom.github.com/a/obZrhA4q
+        title: "Practice: hydrogenic atoms"
 
     - file: ApproximateMethods.ipynb
       title: Approximate Methods